Adobe: PC Preferred?

Historically, Steve Jobs has used Adobe applications such as Photoshop as a benchmark to counter the "Megahertz Myth" with the widening gap between PowerPC and Intel-based processors with regards to pure clock-speeds.

Adobe, however, has posted a new page implying that PC's are preferred over Macs:

While the computers used in this study are no longer the fastest in their respective classes, the information is still valid. The PC outperformed the similar Macintosh machine, at an impressive rate.

The page cites this Digital Producer Magazine article as the basis for the benchmarks.